<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><br><div><blockquote type="cite"><div>On Dec 9, 2024, at 4:03 AM, Mattias Rickardsson <mr@analogue.org> wrote:</div><div><div dir="auto"><div dir="auto"><br></div><div dir="auto">Anyway, triangle/square/saw do have different overtone phase relationships, and I agree it's very important. Both when constructing new waveforms and when mixing oscillators together. The overtones cancel or reinforce in different ways, some of them useful and some not helpful at all.</div><div dir="auto"><br></div><div dir="auto">Are there any synths using modified waveforms with alternative overtone phase setups, in order to match each other (or avoid matching each other) for different results?</div><div dir="auto"><br></div><div dir="auto"></div></div>
</div></blockquote><br></div><div>I'm guessing I'm the only one who builds "phase correct" oscillators. </div><div><br></div><div>I use the term "phase correct" for an audio oscillator where all the waveforms have their fundamental components in phase, and each waveform has as many of its harmonics in phase as possible. </div><div><br></div><div>And I've found significant musical benefits mixing waveforms with this approach. But that's me. </div><div><br></div><div>(And that's what you get for starting a discussion on oscillator phase when I'm in the room.)</div><div><br></div><div>But no matter... It's also the case that the iconic ARP 2600 VCO is probably the least phase correct, as all four of its waveforms have fundamentals in different phases. (!!!)</div><div><br></div><div>Phase-correct waveforms are difficult for a sawtooth-core oscillator as the triangle and sine are derived from the sawtooth at a 90 degree phase difference; the triangle peak (90 degrees) is aligned with the sawtooth retrace (0 or 180 degrees). </div><div><br></div><div><div><div dir="auto" style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div> -- Don<br>--<br>Donald Tillman, Palo Alto, California<br>https://till.com</div><div><br></div></div></div></div></div></body></html>